RC
Ruth Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Multnomah-County, Oregon
Our Model Tree links this Ruth Campbell across the 1920, 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed), with identified parents Robert & Robt — first a daughter (b.~1905), then head of a 4-person household.
Age 35
b. ~1905
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Multnomah-County, Oregon |
| Surname | Campbell |
| Given Name | Ruth M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Multnomah |
| Additional Details | |
| Occupation | Telephone operator |
| Industry | Telephone |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 242 |
| Highest Grade | C-2 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Telephone Operator |
| Township / Ward | Portland City |
| Est. Birth Year | ~1905 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Ruth Campbell | Daughter | — | 35 | ~1905 |
| June Campbell | Daughter | — | 19 | ~1921 |
| Robert Campbell | Head | — | 56 | ~1884 |
| Irene Campbell | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Multnomah, Oregon
Daughter, age 15
Multnomah, Oregon · implied b. ~1905 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Ruth |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Nebraska |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Multnomah, Oregon
Daughter, age 26
Multnomah, Oregon · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Ruth M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Nebraska |
| Occupation | operator |
| Industry | Telephone |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Multnomah-County, Oregon
Daughter, age 35
Multnomah-County, Oregon · implied b. ~1905 — 4 household members
| Surname | Campbell |
| Given Name | Ruth M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Multnomah |
| Occupation | Telephone operator |
| Industry | Telephone |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 242 |
| Highest Grade | C-2 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Ruth Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Campbell (~0.92 confidence) and father Robt Campbell (~0.92 confidence) and mother Irene Campbell (~0.92 confidence) and mother Jane Campbell (~0.92 confidence) and father Robert Campbell (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Campbell
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Robt Campbell
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Irene Campbell
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Jane Campbell
b. ~1879
Source mother
● Household
· direct · ~0.92
Father
Robert Campbell
b. ~1884
Source father
● Household
· direct · ~0.92
This person
Anchor record
Ruth Campbell
Daughter · 1940 · age 35 · b. ~1905 · Oregon
★ You are viewing this record
Sibling
June Campbell
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Multnomah-County, Oregon
Open full size
1940 US Federal Census — Multnomah-County, Oregon
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03392-00066)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Yadwiga Dombrowski | 26 | Wife | — | Poland |
| 42 | Ida G. Demorest | 50 | Head | — | Utah |
| 43 | Harry C. Demorest | 23 | Son | Restaurant | Oregon |
| 44 | Dorothy M. Demorest | 26 | Daughter-in-law | Cashier | Oregon |
| 45 | Harvey S. Palmer | 38 | Head | Warehouseman | Oregon |
| 46 | Nancy M. Palmer | 37 | Wife | Waitress | Illinois |
| 47 | H. Alan Palmer | 18 | Son | — | Oregon |
| 48 | June V. Palmer | 15 | Daughter | — | Oregon |
| 49 | Hugh C. Glenn | 50 | Head | Salesman | Missouri |
| 50 | Karen K. Glenn | 49 | Wife | Saleslady | Minnesota |
| 51 | Howard Jenkins | 38 | Head | Maintenance Man | Wisconsin |
| 52 | Louise Jenkins | 30 | Wife | — | Washington |
| 53 | Axel Wallberg | 77 | Head | Patternmaker | Sweden |
| 54 | Emma C. Wallberg | 59 | Wife | — | Sweden |
| 55 | Robert C. Wallberg | 24 | Son | — | Oregon |
| 56 | Victor L. Wallberg | 22 | Son | Attendant | Oregon |
| 57 | Margaret D. Wallberg | 18 | Daughter | — | Oregon |
| 58 | Fredrick R. Saddler | 40 | Head | Butcher And Meat Cutter | Idaho |
| 59 | Elmer N. Ashford | 25 | Head | Sawyer | Oregon |
| 60 | Talitha P. Ashford | 25 | Wife | — | Washington |
| 61 | Carol A. Ashford | 3 | Daughter | — | Oregon |
| 62 | Judith G. Ashford | 2 | Daughter | — | Oregon |
| 63 | Karen L. Ashford | 0 | Son | — | Oregon |
| 64 | Robert Campbell | 56 | Head | Clerical | Iowa |
| 65 | Irene K. Campbell | 62 | Wife | — | Nebraska |
| 66 | Ruth M. Campbell THIS PERSON | 35 | Daughter | Telephone Operator | Iowa |
| 67 | June L. Campbell | 19 | Daughter | Waitress | Oregon |
| 68 | Elbert L. Mcclintock | 32 | Head | Stone Mason | Oregon |
| 69 | Ruby H. Mcclintock | 27 | Wife | — | Oregon |
| 70 | Jeanine Mcclintock | 8 | Daughter | — | Oregon |
| 71 | Arlen A. Mcclintock | 5 | Daughter | — | Oregon |
| 72 | Arthur H. Klein | 33 | Head | Electric Repair | Oregon |
| 73 | Ida L. Klein | 29 | Wife | — | Oregon |
| 74 | Lu Ann C. Klein | 5 | Daughter | — | Oregon |
| 75 | Perry V. Palmer | 58 | Head | Inspector | Kansas |
| 76 | Myrtle D. Palmer | 51 | Wife | — | Kansas |
| 77 | Elza M. Neary | 47 | Head | Newspaper | Nebraska |
| 78 | Gladys F. Neary | 46 | Wife | — | Nebraska |
| 79 | Archie E. Ealick | 47 | Head | United States Post Office | Washington |
| 80 | Rose H. Ealick | 45 | Wife | — | Idaho |
Pedigree Summary
Ruth + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)